📏 trigonometry

1. **State the problem:** We are given the function $$y=\sin x$$ and want to understand its properties. 2. **Formula and rules:** The sine function is a periodic trigonometric func

1. **State the problem:** We have a sinusoidal function with amplitude $2$, period $\frac{7\pi}{2}$, and it crosses the x-axis at $x = -\frac{7}{4}, \frac{7}{4}, \frac{21}{4}, \fra

1. **State the problem:** We have a sinusoidal function graphed with amplitude 1, midline $y=0$, and period 3. We want to find the exact formulas for this function as a shifted cos

1. **Problem Statement:** Show that $$\sec^4 \theta (1 - \sin^4 \theta) - 2 \tan^2 \theta = 1$$.

1. **Problem:** Verify the assertion and reason for $\sin X + \cos Y = 1$ with $X=30^\circ$ and $Y$ acute. 2. **Problem:** Explain why $\sin\theta = \frac{4}{3}$ is not possible.

1. **State the problem:** Solve the equation $\sin(x^2) = 0.81$ for $x$. 2. **Recall the sine function properties:** The sine function satisfies $\sin \theta = y$ where $\theta = x

1. **State the problem:** Solve the equation $$\sin(x^2) = 0.81$$ for $x$. 2. **Recall the sine function properties:** The sine function satisfies $$\sin \theta = y$$ where $$\thet

1. **Problem 1:** Right triangle with vertical leg $15$ cm, angle $\theta = 45^\circ$ at bottom-right corner, find hypotenuse $c$ and base $a$. 2. **Step 1:** Identify sides relati

1. **Task 1: Point A on Unit Circle** We are given point A with coordinates $$\left(-\frac{\sqrt{3}}{2}, \frac{1}{2}\right)$$ on the unit circle after one revolution.

1. **Stating the problem:** We have a right triangle with a hypotenuse of length 4 and one angle of 45°. We want to find the length of the side opposite this 45° angle, labeled $x$

1. **Problem Statement:** We have two right triangles.

1. **State the problem:** Verify the identity $$\sin^2 x \cot^2 x + \sin^2 x = 1$$. 2. **Start with the left side (LHS):** $$\sin^2 x \cot^2 x + \sin^2 x$$.

1. **State the problem:** We have a sinusoidal wave with peaks near $y=9$ and troughs near $y=-1$, and a midline around $y=4$. We need to find the equation of the wave, amplitude,

1. **State the problem:** We want to find how close the rider on the ferris wheel gets to the ground, which means finding the minimum height of the sine function modeling the heigh

1. **State the problem:** We have a right triangle ABC with a right angle at B, angle $A = 65^\circ$, hypotenuse $AC = 17$ m, and we want to find the length of side $BC = x$. 2. **

1. **Problem:** Draw the graph of $$y = \cos(x + \pi)$$ using a scale in radians on the x-axis. 2. **Formula and properties:**

1. **State the problem:** We need to analyze and draw the trigonometric graphs of the function $$y = \cos\left(x + (period)bi\right)$$ where $b$ is a real number and $i$ is the ima

1. **State the problem:** We have three right triangles each with an angle of $61.2^\circ$. We need to find the ratio of the side opposite this angle to the hypotenuse for each tri

1. **State the problem.** We have a right triangle where the string is the hypotenuse with length $176$ m, and the angle with the ground is $27^\circ$.

1. **State the problem:** Determine the amplitude and period of the sinusoidal wave described. 2. **Recall the definitions:**

1. **State the problem:** We need to find the height of the satellite dish tower given two wires fastened from points $A$ and $B$ on the ground to the top of the tower. The longer